When equal volumes of the following solutions are mixed, the precipitation of AgCl `(K_(sp)=1.8xx10^(-10))` will occur with :

Options

A. `10^(-4) M [Ag^(+)] " and "10^(-4)M[Cl^(-)]`
B. `10^(-5) M [Ag^(+)]" and "10^(-5)M[Cl^(-)]`
C. `10^(-6)M[Ag^(+)]" and " 10^(6)M [Cl^(-)]`
D. `10^(-10)M[Ag^(+)] " and " 10^(-10)M[Cl^(-)]`

Answer

1

Explanation

We look for the case where the ionic product exceeds the `K_("sp")`.
(1) `[Ag^(+)][Cl^(-)] = (1/2 xx 10^9-4)^(2) = 2.5 xx 10^(-9) ` [As the dilution factor for `Ag^(+)" and "Cl^(-) ` is 2 ]